MeshConverter: Added better format support and added tangent calculation.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@1543 dfc29bdd-3216-0410-991c-e03cc46cb475

tools/MeshConverter/main.cpp

@@ -13,12 +13,20 @@ using namespace gui;
 #pragma comment(lib, "Irrlicht.lib")
 #endif
 
+void usage(const char* name)
+{
+	std::cerr << "Usage: " << name << " [options] <srcFile> <destFile>" << std::endl;
+	std::cerr << "  where options are" << std::endl;
+	std::cerr << " --createTangents: convert to tangents mesh is possible." << std::endl;
+	std::cerr << " --format=[irrmesh|collada|stl|obj]: Choose target format" << std::endl;
+}
+
 int main(int argc, char* argv[])
 {
 	if ((argc < 3) ||
 			((argc==3) && (argv[1][0]=='-')))
 	{
-		std::cout << "Usage: " << argv[0] << " [--format=irrmesh|collada|stl] <srcFile> <destFile>" << std::endl;
+		usage(argv[0]);
 		return 1;
 	}
 
@@ -27,38 +35,68 @@ int main(int argc, char* argv[])
 
 	device->setWindowCaption(L"Image Converter");
 
-	IVideoDriver* driver = device->getVideoDriver();
-
 	scene::EMESH_WRITER_TYPE type = EMWT_IRR_MESH;
-	u32 srcmesh = 1;
-	u32 destmesh = 2;
-	if (argv[1][0]=='-')
+	u32 i=1;
+	bool createTangents=false;
+	while (argv[i][0]=='-')
+	{
+		core::stringc format = argv[i];
+		if (format.size() > 3)
 		{
-		core::stringc format = argv[1];
-		if ((format.size() > 3) && format.equalsn("--format=",9))
+			if (format.equalsn("--format=",9))
 			{
-			++srcmesh;
-			++destmesh;
 				format = format.subString(9,format.size());
 				if (format=="collada")
 					type = EMWT_COLLADA;
-			else
-			if (format=="stl")
+				else if (format=="stl")
 					type = EMWT_STL;
+				else if (format=="obj")
+					type = EMWT_OBJ;
 				else
 					type = EMWT_IRR_MESH;
 			}
+			else
+			if (format =="--createTangents")
+				createTangents=true;
+		}
+		else
+		if (format=="--")
+		{
+			++i;
+			break;
 		}
+		++i;
+	}
+
+	const s32 srcmesh = i;
+	const s32 destmesh = i+1;
+
+	--argc;
+	if ((argc<srcmesh) || (argc<destmesh))
+	{
+		std::cerr << "Not enough files given." << std::endl;
+		usage(argv[0]);
+		return 1;
+	}
+
+	createTangents = createTangents && (type==EMWT_IRR_MESH);
 	std::cout << "Converting " << argv[srcmesh] << " to " << argv[destmesh] << std::endl;
-	IAnimatedMesh* mesh = device->getSceneManager()->getMesh(argv[srcmesh]);
+	IMesh* mesh = device->getSceneManager()->getMesh(argv[srcmesh])->getMesh(0);
 	if (!mesh)
 	{
 		std::cerr << "Could not load " << argv[srcmesh] << std::endl;
 		return 1;
 	}
+	if (createTangents)
+	{
+		IMesh* tmp = device->getSceneManager()->getMeshManipulator()->createMeshWithTangents(mesh);
+		mesh->drop();
+		mesh=tmp;
+	}
 	IMeshWriter* mw = device->getSceneManager()->createMeshWriter(type);
 	IWriteFile* file = device->getFileSystem()->createAndWriteFile(argv[destmesh]);
-	mw->writeMesh(file, mesh->getMesh(0));
+	mw->writeMesh(file, mesh);
+	mesh->drop();
 	file->drop();
 	mw->drop();